Ncert- CLASS 6 – SCIENCE- Chapter 10: Fun with Magnets 2 Welcome to your Ncert- CLASS 6 - SCIENCE- Chapter 10: Fun with Magnets 2 1. Which shape of magnet is used in electric bell? Bar magnet Horse-shoe shaped Cylindrical magnet Ball-ended magnet None 2. Which effect of force is caused by the magnetic force between a magnet and a magnetic substance? Change of physical state. Change of position. Change of shape. Change of chemical nature. None 3. Complete the following statements with an appropriate word / term to be filled in the blank space(s).A compass needle is a ________ magnet : fieldless big small super None 4. The answer to which of the following options will distinguish between a magnetic material and a non-magnetic material? Is it a conductor or an insulator? Is it a metal of a non metal? Does it affect the direction in which a compass needle points? Can it be given an electric charge? None 5. The presence of magnetic field at a point can be detected by a compass needle galvanometer ammeter strong magnet None 6. A marine compass is used to determine dip at a place determine direction determine H compare magnetic moments None 7. The marked end of a compass needle always points directly to Earth's geographic South Pole A magnet's north pole Earth's geographic North Pole A magnet's south pole None 8. The device used by sailors and navigator to know the direction is called Direction finder Speedometer Wind vane Magnetic compass None 9. How will hammering a bar magnet affect Its magnetic strength? None of the above Is likely to increase Is likely to decrease Will not change None 10. How is a compass used to find directions? When suspended freely the compass needle starts rotating in a particular plane and the axis of rotation perpendicular to the plane gives us north and south poles When suspended freely the compass needle aligns itself in the vertically up-down direction which gives us the perpendicular direction to the needle as north and south poles When suspended freely the compass needle aligns itself in the east-west direction which gives us the perpendicular direction to the needle as north and south poles When suspended freely the compass needle aligns itself in the north-south direction which gives us the direction of the north and south poles None 11. What kind of magnet is used in a magnetic compass ? none of the above electromagnet temporary magnet permanent magnet None 12. Magnet was discovered by 13. The N-pole of a compass points to the .............. pole of a permanent magnet north south-east south north-east None 14. Magnetic strength of the magnet is Concentrated in the centre of magnet Concentrated at one of the poles of the magnet Distributed uniformly throughout the magnet Concentrated at both the poles of the magnet None 15. Which of the following is not attracted by a magnet? nickel bronze cobalt steel None 16. What is the circular enclosure that the magnetic compass is placed in ? stainless steel case nickel case aluminium case iron case None 17. The end of a free hanging magnet which points towards North is called West pole North pole South pole East pole None 18. _______ is the surest test of magnetism. Attraction No change Repulsion None of the above None 19. Which types of magnet have two poles close to each other? Electromagnet Cylindrical magnet Bar magnet Horse-shoe magnet None 20. Which of the following will help demagnetizing a magnet ? Putting in contact with iron Cooling it Hammering the magnet Putting it in the water None Time's up Please Share This Share this content Opens in a new window Opens in a new window Opens in a new window Opens in a new window Opens in a new window Opens in a new window Opens in a new window Opens in a new window Opens in a new window Opens in a new window Leave a Reply Cancel replyCommentEnter your name or username to commentEnter your email address to commentEnter your website URL (optional) Save my name, email, and website in this browser for the next time I comment.
